Nature can be trusted to work her own miracle in the heart of any man whose daily task keeps him alone among her sights, sounds and silences.

I do not believe there is any one study that can be taken up that will broaden the imagination, that will be the source from which will spring more deep thinking and sincere research than the study of astronomy.

I do not know why it is the fate of the world always to want something different from what life gives them.

there was nothing in the whole world so dreadful as the power of riches wrongly used.

When any man accumulates more than he can earn with his own hands, he begins to enrich himself at the expense of the youth, the sweat, the blood, the joy of his fellow men.

What you are lies with you. If you are lazy, and accept your lot, you may live in it. If you are willing to work, you can write your name anywhere you choose, among the only ones who live beyond the grave in this world, the people who write books that help, make exquisite music, carve statues, paint pictures, and work for others. Never mind the calico dress, and the coarse shoes. Work at you books, and before long you will hear yesterday's tormentors boasting that they were once classmates of yours.

Tears were a blessing; they were a relief; they did wash the ache from the heart, ease brain strain, and encourage the soul.